Forum Discussion
Mr_Mark1
Oct 16, 2016Explorer
Usermanual, I don't know of any motorhome that has dual DEF tank fills. The tanks, I think, are too small for that and really not necessary. The fill just needs to be on the driver's side.
If the fuel stations set-up one pump with the DEF fill on the passenger side, it would help those with that set-up. My brother's 2014 Tiffin has his DEF on the driver's side but 15 ft. away from the diesel fill. He has to pull up after fueling with diesel to reach the DEF tank.
Even if H13 had dual fill, his driver's side filler would be 20 ft. from his diesel fill as his DEF tank is located towards the rear of the coach.
I bet all future vehicles will have the DEF near the diesel fill on the driver's side.
MM.
If the fuel stations set-up one pump with the DEF fill on the passenger side, it would help those with that set-up. My brother's 2014 Tiffin has his DEF on the driver's side but 15 ft. away from the diesel fill. He has to pull up after fueling with diesel to reach the DEF tank.
Even if H13 had dual fill, his driver's side filler would be 20 ft. from his diesel fill as his DEF tank is located towards the rear of the coach.
I bet all future vehicles will have the DEF near the diesel fill on the driver's side.
MM.
About Motorhome Group
38,758 PostsLatest Activity: Nov 04, 2025